Who owns Ciena Corporation?
Institutional ownership of CIEN from SEC Form 13F filings across 690 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
690
13F holders
$53.90B
value, 2026 filers
81.8%
of shares outstanding (116.3M sh)
122
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of CIEN's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | FMR LLC | 19.1M | $9.38B | 0.4% | 13.4% | -9.9% |
| 2 | BlackRock, Inc. | 12.7M | $6.24B | 0.1% | 8.9% | -4.9% |
| 3 | JPMORGAN CHASE & CO | 11.2M | $5.37B | 0.3% | 7.9% | +9.6% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 9.2M | $4.53B | 0.1% | 6.5% | -49.6% |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | 7.7M | $3.77B | 0.2% | 5.4% | +4.2% |
| 6 | PRICE T ROWE ASSOCIATES INC /MD/ | 4.1M | $2.0M | 0.2% | 2.9% | -22.3% |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 3.4M | $1.65B | 0.1% | 2.4% | -17.1% |
| 8 | AMERICAN CENTURY COMPANIES INC | 1.9M | $908.4M | 0.4% | 1.3% | +245.6% |
| 9 | BANK OF AMERICA CORP /DE/ | 1.8M | $877.4M | 0.1% | 1.3% | -8.5% |
| 10 | Capital World Investors | 1.8M | $861.2M | 0.1% | 1.2% | +1.8% |
| 11 | Invesco Ltd. | 1.7M | $848.8M | 0.1% | 1.2% | +13.1% |
| 12 | NORGES BANKNEW | 1.7M | $835.5M | 0.1% | 1.2% | new |
| 13 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.7M | $822.7M | 0.4% | 1.2% | +20.8% |
| 14 | MORGAN STANLEY | 1.6M | $801.9M | 0.0% | 1.1% | +4.7% |
| 15 | Nuveen, LLC | 1.4M | $682.6M | 0.2% | 1% | +64.8% |
| 16 | Sixth Street Partners Management Company, L.P.NEW | 1.2M | $612.7M | — | 0.9% | new |
| 17 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.2M | $612.7M | 0.1% | 0.9% | -1.8% |
| 18 | NORTHERN TRUST CORP | 1.2M | $597.5M | 0.1% | 0.9% | +2.6% |
| 19 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 1.1M | $561.9M | 0.1% | 0.8% | +34.5% |
| 20 | BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 1.1M | $542.1M | 0.5% | 0.8% | +8.2% |
| 21 | GOLDMAN SACHS GROUP INC | 946,611 | $464.4M | 0.0% | 0.7% | +22.4% |
| 22 | Legal & General Group Plc | 887,054 | $435.2M | 0.1% | 0.6% | +36.8% |
| 23 | Bank of New York Mellon Corp | 825,480 | $404.9M | 0.1% | 0.6% | -10.9% |
| 24 | VANGUARD FIDUCIARY TRUST CO | 812,345 | $398.5M | 0.1% | 0.6% | +2.4% |
| 25 | VOYA INVESTMENT MANAGEMENT LLC | 731,614 | $358.9M | 0.3% | 0.5% | -39.3% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.